Liquid door-check.



No. 732,369. PATENTED JUNE 30, 1903- G. H. OGUMPAUGH.

LIQUID DOOR CHECK. 7

APPLICATION FILED SEPT. 24, 1902.

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PATENTED JUNE 30, 1903.

C. H. UCUMPAUGH. LIQUID DOOR.- CHECK. APPLICATION FILED SEPT. 24, 1902,

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in SP Adwvw w UNITED STATES Patented June 30, 1903.

PATENT ()FFICE.

LIQUID DOOR-CHEQK.

SPECIFICATION forming part of Letters Patent No. 732,369, dated June 30, 1903.

Application filed September 24,1902. Serial No. 124,709. (No model.)

To (tZZ whom, it may concern:

Be it known that I, CHARLES H. OOUM- PAUGH, a resident of Rochester, in the county of Monroe and State of New York, have ingranted me August 6, 1901, and has for its obj ects to provide a check and closer that can be used for either right or left hand doors with: out changing the direction in which the spring is wound, thereby avoiding the necessity of removing and readjusting the spring to adapt it to suit particular cases, and to provide a casing convenient for assembling therewith the operative mechanism and to otherwiseincrease the efficiency andconvenience of door checks and closers.

The invention consists in the construction hereinafter described and pointed out.

In the accompanying drawings, Figure 1 is a central section taken lengthwise the liquidholder. Fig. 2 is a transverse central section taken through the main or piston-actuating shaft. Fig. 3 is a section of a sleeve provided with gears. Fig. 4. is an end view of the sleeve.

Fig. 5 is a side elevation of a sleeve fixing collar. Fig. 6 is a central section of the collar through its axis. Fig.7 is a side elevation of the door-check. 4

Numeral 1 denotes the casing,having brackets 2 for its attachment to a door, and 3 a liquid-holder provided with a piston 4, having an automatically-acting valve 5, the holder being provided with a by-pass 6. An arm or rod 7 is operatively connected to said piston by a shaft 8.

A spring-winding shaft is denoted by 9, and 9 denotesaslot for the attachment ofaspring, which, though always wound from the end fixed to said shaft, may be made to act oppositely by means hereinafter described. Said shaft has a gear 10, by means of which power is transmitted between the spring and arm 7, which in use is connected to a door. The

casing has a spring-chamber 11,provided with a removable cover or screw-cap 12, situated at the back of the check on the side next the door when in use. It has also a screw-plate 12 in which is a bearing for one end of spring-shaft 9. The liquid-holding chamber 3 has also a removable cover 3 13denotesa gear-chamber having at its end opposite the liquid-holder a flanged opening 14, in which is situated the enlarged head l5 of a gear-reversing sleeve 15, surrounding the piston-actuating shaft 8. The said chambers are so disposed within the casing that the axis of any one is at right angles to each of the axes of the other two and the axes of any two chambers are at right angles to each other. Each chamber has an opening in a plane at right angles to its axis. This construction is highly favorable for assembling the operative parts within the casing, and since by the improvement the necessity for opening the spring-chambers in ordinary cases is avoided the cover to it is situated adjacent the door. The changing of the spring to suit difierent doors,as heretofore practiced,is inconvenient,

requiring the services of a skilled mechanic,

and, further, is a filthy and disagreeable operation on account of the practice of using abundant grease in the spring-chamber. The sleeve 15 carries oppositely-situated reverselyacting bevel-gears 16 and 17, either of which can be operatively connected with the gear 10 on the spring-winding shaft by a suitable adjustment of the said sleeve endwise the shaft 8, whereby the gears, though oppositely driven, may always rotate gear 10 in the same direction and whereby the spring may in turn actuate said gears 16 and 17 oppositely.

19 is a recess formed in the head of the gearsleeve outside the casing to receive, as required, a collar 20 to lock the sleeve against endwise movement. This collar (see Figs. 5 and 6) is removable from the sleeve-head, being held in place by a detachable pin 20 When this collar is situated in the recess 19, as indicated in Fig. 2, the sleeve is thereby held in its uppermost or outer situation and so that the sleeve-gear 16 meshes with the spring-shaft gear 10. To cause said gear 10 to mesh with a reversely-acting gear 17, the locking-collar 20 is removed from the recess 19 and the sleeve movedendwise on the shaft, so that the desiredmeshing of gears 10 and 17 is effected, whereupon the locking-collar 2O is placed above the sleeve-head, so as to engage a circular extension or shoulder 7 as indicated in Fig. 1. 21 is a recess in the sleeve-head to receive said extension when the parts are adjusted, as indicated in Fig. 2. The extension '7 has approximately the same diameter as that of the sleeve-head where it is reduced by the recess 21, whereby it is adapted to fit in the locking-collar 20, as shown in Fig. 1, said collar being adapted 'under one adjustment to fit the reduced part of the head, as shown in Fig. 2.

The arm 7 is operatively connected to the sleeve 15 by means of a pawl 22, rotatively held on a stud 23, fixed to said arm. Said pawl meshes with a rack 24: on the head of the sleeve 15. The tooth of this pawl has sufficient length to engage the rack-teeth in either position of the sleeve lengthwise the shaft 8, and they are preferably each twice the length of the thickness of the collar 20. The arm 7 is fixed upon the shaft 8 by a nut 2t. A portion of the shaft, made angular in cross-section and adapted to fit a similar part in the head of the arm, is denoted by 25.

'It will be understood from the foregoing that to adjust the improved door check and closer to suit a door opening oppositely with respect to left and right hand movements it is only necessary to adjust and fix the sleeve in the mannerdescribed and that this can be done without opening the casing. It should also be understood that the device can be used with various kinds of checks and also as a door-closer irrespective of the check and wherever it is desirable to change the direction of a spring-operated part without changing the spring.

I claim 1. In a door-closing device, a casing containing spring and gear chambers, a door-closing spring, a spring-winding shaft, a doorclosing arm moved by said spring, and adjustable means for operatively connecting the spring-shaft and arm to move the arm oppositely, whereby the spring wound from one end may be used with either right or left hand doors.

2. In a door-closing device, a casing containing spring and gear chambers, a door-closing spring, a spring-winding shaft having a gear, a spring-actuated door-closing arm, an armactuated shaft, a sleeve on the latter shaft provided with oppositely-acting gears, and means for alternately connecting at will the gear on the shaft with a gear on the sleeve to change the direction of movement of the spring-actuated arm, whereby the sleeve can be driven in opposite directions with a spring wound from one end only.

3. In a door check and closer, the combination with a door-closing arm, a door-closing spring, a spring-winding shaft, a checking-piston, means to operatively connect said arm to said shaft, and piston, of a casing containing said devices, and means independent of the casing and externally adjustable to change the direction of the movement of said door-closing arm without changing the direction of the movement of the spring.

4. In a door check and closer, a casingcontaining spring and gear chambers, a doorolosing spring, a spring-winding shaft having a gear, an arm adapted foroperative connection with a door, a gear-shaft operatively connected to said arm and supporting two gears, and devices for causing either of said two gears to mesh with the spring shaft gear whereby the arm may be moved oppositely.

5. In a door check and closer, a casing, a door-closing arm, a spring operatively connected to said arm, a rotatable member having a gear and operatively connected with said spring, a rotatable member having two oppositely-acting gears connected thereto and operatively connected to said arm, and devices forcausing the gear of the single-geared member to mesh with either of the two gears connected to the other member, said spring having one end fixed to the single-geared rotatable member and the other end to the casin".

6. In a door check and closer, a casing, a door-closing arm, a spring operatively connected to said arm, a rotatable member having a gear and operatively connected with said spring, a rotatable member having two oppositelyacting gears connected thereto and operatively connected to said arm, and devices for causing either of the two gears connected to said rotatable member to mesh with the gear of the single-geared member, said spring having one end fixed to the single-geared rotatable member and the other end to the casing, and an adjustable device for holding either of the two gears in mesh with the gear first named.

7. In a door check and closer, a door-closing arm, a power transmitting shaft, a gearcarrying sleeve movable longitudinally on the shaft and having pawl-receiving notches in its head, said sleeve being of reduced diameter between the notched head and a gear to receive a part for locking the sleeve against the longitudinal movement, said locking part, a spring operatively connected to the sleeve by power-' transmitting connections whereby the sleeve may be oppositely actuated by the spring, and said connections.

8. In a door check and closer, a casing containing spring and piston chambers and a chamber for power-transmitting devices, a piston having an operating-shaft extending at right angles to the movement of the piston, a door-closing spring, a spring-winding shaft extending at right angles to the piston-actuating shaft and also at right angles to the movement of the piston, a door-closing arm, and power-transmitting connections for actuating the arm, said power-transmitting connectionsincluding the piston-actuating shaft.

9. In a door check and closer, a door, a door-closing arm, a door-closing spring, a spring-winding shaft arranged at right angles to the door, a power-transmitting gear on said shaft, intermediate mechanism to close the door, and a casing having a spring-chamber and a chamber for the intermediate mechanism.

10. In a door check and closer, a door, a doorclosing arm, a door-closing spring, a spring-winding shaft arranged at right angles to the door, a power-transmitting gear on said shaft, intermediate mechanism to close the door, and acasing having a spring-chamber and a chamber for the intermediate mechan ism, and a cover for the spring-chamber, said cover standing in a plane parallel with the door whereby the chamber is made more conveniently accessible.

11. In a door check and closer, a door-closing spring, a door-closing arm, a shaft, transmitting power between the spring and door, a sleeve longitudinally adjustable on the shaft and, provided with oppositely-acting power-transmitting devices, and adjustable means for locking the sleeve in either of two positions, said means consisting of a part adapted to be adjusted while the arm is retained on the shaft.

12. In a door check and closer, a door-closing spring, a gear driven by said spring, a power-transmitting shaft supporting a sleeve provided with oppositely-acting gears and with a rack, said sleeve being adjustable to put either of its gears in mesh with the springdriven gear, an adjustable sleeve-locking part, a door-closing arm, and a pawl on the arm engaging the rack, the operative face of the pawl depending from the arm a distance twice the thickness of the sleeve-lockin g part, to cooperate with the sleeve under any adjustment thereof.

13. In a door check and closer, a piston-actuating shaft, a casing for said shaft, a power-transmitting adjustable sleeve on the shaft, the head of said sleeve resting in the casing, a door-closing arm attached to the shaft above the casing, a locking part between the arm and the sleeve, and a spring operatively connected to the sleeve.

14. In a door check and closer, a casing having three chambers, the axis of any one of which is at right angles to the axes of the other two.

15. In a door check and closer, a casing.

containing a checking-piston, a spring, means for winding the spring exclusively from one end, a spring-actuated arm, a shaft, and exterior means for changingv the direction of the movement of the arm without changing the direction of movement of the spring.

16. In a door check and closer, a shaft, a sleeve, and an arm having a fixed extension '7 for entering the head of the sleeve.

17. In a door check and closer, a shaft, an arm, and a sleeve having a recessed head adapted to receive an extension 7 X on the arm, and a locking-collar adapted to receive said extension.

18. In a door-closer, the combination with a casing having a spring and gear chamber, of a horizontal shaft mounted to rotate in said spring-chamber and having its inner end projecting into said gear-chamber, a beveled gear on the inner end of said shaft, a spring having its inner end secured to the shaft and adapted to be wound thereon and its outer end secured to the wall of the spring-chamher, a vertical shaft mounted to rotate in said gear-chamber, a door-closing arm removably secured to the outer end of said vertical shaft above the casing and reversible gear mechanism thereon adapted to at will reversely mesh with the gear on the horizontal shaft whereby the movement of the door-closing arm may be reversed and the apparatus adapted for use on a right or left hand door without change of the spring mechanism.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES H. OCUMPAUGH.

"Witnesses:

E. G. HEMPEL, E. L. WINTERSTEIN. 

